A242220 Decimal expansion of (10^(1/3)-1)/2, an approximation to the Euler-Mascheroni constant.

5, 7, 7, 2, 1, 7, 3, 4, 5, 0, 1, 5, 9, 4, 1, 8, 6, 0, 8, 7, 9, 6, 4, 6, 7, 8, 3, 2, 5, 9, 6, 7, 5, 2, 4, 7, 6, 2, 9, 6, 7, 2, 4, 7, 1, 0, 9, 6, 0, 5, 4, 2, 9, 1, 2, 4, 4, 6, 1, 7, 7, 5, 3, 1, 7, 3, 2, 0, 5, 5, 5, 3

Offset

0,1

Comments

The relative error of this approximation is about 2.91e-6.

References

R. Faure, A. Kaufmann and M. Denis-Papin, Manuale di Matematica, ISEDI, 1971, page 831. Translated from French and edited by M. G. Cossarini.

Links

Stanislav Sykora, Table of n, a(n) for n = 0..2000

Example

0.57721734501594186087964678325967524762967247109605429124461775...

Mathematica

RealDigits[(10^(1/3) - 1)/2, 10, 100][[1]] (* G. C. Greubel, Sep 04 2018 *)

Prog

(PARI) (sqrtn(10, 3)-1)/2
(Magma) SetDefaultRealField(RealField(100)); (10^(1/3)-1)/2; // G. C. Greubel, Sep 04 2018

Crossrefs

Cf. A001620.

Sequence in context: A154802 A210624 A001620 * A357068 A245726 A101456

Adjacent sequences: A242217 A242218 A242219 * A242221 A242222 A242223

Keyword

nonn,cons

Author

Stanislav Sykora, May 07 2014

Status

approved